Metric Series Tapered Roller Bearings

**Introduction to NSK’s Metric Series Tapered Roller Bearings: Precision, Durability, and Performance**

In the demanding world of industrial machinery, automotive systems, and precision equipment, the reliability and efficiency of rotating components are critical. NSK’s **Metric Series Tapered Roller Bearings** stand at the forefront of precision motion and control technologies, delivering exceptional load capacity, rigidity, and longevity in high-performance applications. Engineered with advanced materials and precision manufacturing techniques, these bearings are designed to handle combined radial and axial loads while maintaining smooth operation under extreme conditions.

### **Technical Features and Design Excellence**
NSK’s Metric Series Tapered Roller Bearings are meticulously crafted to meet the stringent demands of modern industrial and automotive applications. Key features include:

– **Optimized Roller and Raceway Geometry**: The tapered design ensures uniform stress distribution, reducing edge loading and extending service life.
– **High-Grade Materials**: Manufactured from premium steel alloys with advanced heat treatment processes, these bearings offer superior wear resistance and fatigue strength.
– **Precision Ground Surfaces**: Ultra-smooth raceways and rollers minimize friction, ensuring efficient power transmission and reduced energy loss.
– **Robust Cage Designs**: Options include pressed steel, machined brass, or polymer cages, each selected for optimal performance in specific operating environments (e.g., high speeds, corrosive conditions).
– **Sealing and Lubrication Options**: Configurations with integrated seals or shields protect against contamination, while specialized grease formulations enhance performance in high-temperature or high-speed applications.

### **Performance Advantages**
NSK’s tapered roller bearings excel in applications where reliability and precision are non-negotiable:

– **High Load Capacity**: The tapered geometry allows for simultaneous handling of heavy radial and thrust loads, making them ideal for gearboxes, wheel hubs, and heavy machinery.
– **Enhanced Rigidity and Stability**: Precision alignment ensures minimal deflection under load, critical for applications like machine tool spindles and industrial drivetrains.
– **Extended Service Life**: Advanced fatigue-resistant materials and optimized lubrication systems reduce maintenance intervals and downtime.
– **Energy Efficiency**: Low friction design contributes to reduced power consumption, aligning with modern sustainability goals.

### **Typical Applications**
NSK’s Metric Series Tapered Roller Bearings are widely used across industries, including:

– **Automotive Systems**: Wheel bearings, differential assemblies, and transmission systems benefit from their durability and load-handling capabilities.
– **Industrial Machinery**: Conveyors, crushers, and mining equipment rely on these bearings for their ability to withstand shock loads and harsh environments.
– **Precision Equipment**: Machine tools, robotics, and aerospace actuators demand the high rigidity and accuracy that NSK’s tapered roller bearings provide.

By combining cutting-edge engineering with decades of expertise, NSK ensures that its Metric Series Tapered Roller Bearings deliver unmatched performance, reliability, and efficiency—making them the preferred choice for engineers and manufacturers worldwide. Whether in high-speed automotive drivetrains or heavy industrial gearboxes, these bearings are built to excel under pressure while maintaining precision and longevity.

MORE +
CLOSE +
Designations Nominal Dimensions Basic Load Ratings
d
mm
D
mm
T
mm
B
mm
C
mm
Cone r (min.)
mm
Cup r (min.)
mm
Cr
N
C0r
N
HR30240J
200
360
64
58
48
5
4
975000
1120000
HR32240J
200
360
104
98
82
5
4
1480000
1920000
30340D
200
420
89
80
56
6
5
1190000
1330000
30340
200
420
89
80
67
6
5
1260000
1390000
32340
200
420
146
138
115
6
5
2240000
2870000
HR32944J
220
300
51
51
39
3
2.5
600000
990000
HR32044XJ
220
340
76
76
57
4
3
1090000
1610000
30244
220
400
72
65
54
5
4
995000
1150000
32244
220
400
114
108
90
5
4
1650000
2210000
30344
220
460
97
88
73
6
5
1760000
1990000
32344
220
460
154
145
122
6
5
2480000
3200000
HR32948J
240
320
51
51
39
3
2.5
615000
1040000
HR32048XJ
240
360
76
76
57
4
3
1130000
1730000
30248
240
440
79
72
60
5
4
1220000
1400000
32248
240
440
127
120
100
5
4
2000000
2730000
30348
240
500
105
95
80
6
5
2040000
2340000
32348
240
500
165
155
132
6
5
3100000
4100000
HR32952J
260
360
63.5
63.5
48
3
2.5
900000
1450000
HR32052XJ
260
400
87
87
65
5
4
1430000
2160000
30252
260
480
89
80
67
6
5
1460000
1700000
32252
260
480
137
130
106
6
5
2340000
3300000
30352
260
540
113
102
85
6
6
2300000
2640000
HR32956J
280
380
63.5
63.5
48
3
2.5
945000
1580000
HR32056XJ
280
420
87
87
65
5
4
1450000
2240000